IMO Level 1 Mathematics Olympiad (SOF) Class 9: Questions 112  117 of 929
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Question number: 112
» Lines, Angles and Quadrilaterals
Question
If , and, then x and y respectively are ________
Choices
Choice (4)  Response  

a.  35˚, 55˚ 

b.  90˚, 30˚ 

c.  45˚, 35˚ 

d.  65˚, 25˚ 

Question number: 113
» Lines, Angles and Quadrilaterals
Question
In the given figure, XY is a mirror, AB is the incident ray and BC is the reflected ray. If ∠ABC = 116˚, then ∠CBY is ________
Choices
Choice (4)  Response  

a.  43˚ 

b.  21˚ 

c.  23˚ 

d.  32˚ 

Question number: 114
» Lines, Angles and Quadrilaterals
Question
In the given figure and, then value of x is________.
Choices
Choice (4)  Response  

a.  140˚ 

b.  105˚ 

c.  135˚ 

d.  125˚ 

Question number: 115
» Lines, Angles and Quadrilaterals
Question
How many sides does a regular polygon have, each angle of which is of measure 135˚?
Choices
Choice (4)  Response  

a.  6 

b.  8 

c.  7 

d.  9 

Question number: 116
» Lines, Angles and Quadrilaterals
Question
Two supplementary angles differ by 94˚. Then the angles are ________
Choices
Choice (4)  Response  

a.  120˚, 60˚ 

b.  142˚, 38˚ 

c.  137˚, 43˚ 

d.  67˚, 113˚ 

Question number: 117
» Lines, Angles and Quadrilaterals
Question
In the figure below, lines PQ and JK intersect at O. if and, then are equal to ________
Choices
Choice (4)  Response  

a.  56˚ 

b.  54˚ 

c.  58˚ 

d.  90˚ 
